<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>18表单的补充</title>
</head>
<body>
    <form action="target.html">
        <input type="text" name="username" value="hello"><br>
        <input type="submit">
        <!-- 普通的按钮 -->
        <input type="button" value="按钮">
        <!-- 重置按钮(将输入框中的内容重置为默认值) -->
        <input type="reset">
        <br>
        <!-- 用button也能实现这样的按钮效果 -->
        <button type="submit">提交</button>
    </form>
</body>
</html>